navy seal sniper has been shot dead at a gun range in texas. chris kyl and another man were shot dead at the rough creek shooting what on saturday. he was nicknamed the devil by iraqi rebels. the telling his wartime experiences, he said he killed 160 people. no suspects have been arrested in his death. given the recent gun violence in the u.s., this sort of image, barack obama firing a gun, not what you expected to see, but it was the white house to release of this picture, trying to appeal to the powerful gun lobby. tom explains from washington. >> as president obama pushes to tighten gun laws, he tried to calm the fears of enthusiasts. >> i respect the trunk -- a strong could it -- the strong condition of gun ownership -- tradition of gun ownership. >> many gun rights advocates do not trust obama or except his account of practicing skeet shooting at the camp david retreat. >> are there photographs? >> there might be, i have not seen it. >> i have not heard about it. >> when he goes to camp david he goes there to relax. >> saturday the white h